ASSRA Forum - A better bullet idea

ASSRA Forum › General › General Discussion › A better bullet idea

(Moderator Group: Moderator)

‹ Previous Topic | Next Topic ›

Page Index Toggle

Pages: 1

Normal Topic

A better bullet idea (Read 2034 times)

Mick B Frequent Elocutionist Offline Posts: 1007 Location: 19 Ian Nicol St watson ACT aus Joined: Apr 11^th, 2013	A better bullet idea Feb 16^th, 2022 at 5:53pm	Print Post
	I'm currently messing around with breech seating in my CPA 40/60 Maynard, this rifle has a Krieger barrel and to the best of my knowledge is .400" .408" and 1-16 twist. Usually I shoot fixed ammunition using black powder only, the bullet I use is from BACO # JIM409400M4 and shoots well in fixed ammo. It also shoots quite well when breech seated but I was wondering if there might be a better bullet design to try. I only have a push type seater for the 40-60 and pushing the BACO bullet in requires gentle tapping with a small hammer. The bullet is .408" dia and I was also wondering that if I was to get a custom mould made might it be better to have the dia at say .407" to make seating it easier, currently I'm using 22-1 alloy so I don't have much room to go any softer. Any suggestions would be welcome. Mike.


	IP Logged

Dusty Rhodes Full Member Offline Posts: 175 Joined: Apr 28^th, 2016	Re: A better bullet idea Reply #1 - Feb 16^th, 2022 at 9:14pm	Print Post
	Mick, in my humble opinion you definately need a specific BS bullet especially with a Push seater. I used them for years with the wrong bullets, and finally decided to get serious. A heavey taper at least, but I like the Base Band design. A wide base band of .125" - .200" at .002" over Groove diameter, the rest of the driving bands at .001" over bore diameter makes for an easy seat with 30:1. Maybe even harder. A good wide Base band allows for some adjustment in Seating depth without compremising Gas seal. You do need to play with seating depth. Steve Brooks, Tom at Accurate Molds, Boomer molds in Canada, will all make a Mold to your design. Franknfore on here might even have one. If you are real serious, take a Cast of your Breach / Bore so you can see what Freebore and Lead you have. It's all good fun, happy trials. 👍


	IP Logged

Mick B Frequent Elocutionist Offline Posts: 1007 Location: 19 Ian Nicol St watson ACT aus Joined: Apr 11^th, 2013	Re: A better bullet idea Reply #2 - Feb 17^th, 2022 at 12:36am	Print Post
	I had this idea in my head of a bullet with a rounded nose and the first third of its length being at bore diameter and the remaining two thirds at maybe .407'' to make loading easier, how does all that sound ?. Also I was thinking that if I was going to shell out for a custom mould I might go for a nose pour style while I'm at it. Mike.


	IP Logged

ballardhepburnmich ASSRA Board Member Offline Posts: 598 Location: Scotts,mi. Joined: May 20^th, 2015	Re: A better bullet idea Reply #3 - Feb 17^th, 2022 at 2:07am	Print Post
	You still need a base band large enough to seal the bore. Lee Gibbs Pres.ASSRA


	IP Logged

Dusty Rhodes Full Member Offline Posts: 175 Joined: Apr 28^th, 2016	Re: A better bullet idea Reply #4 - Feb 17^th, 2022 at 3:00am	Print Post
	Mick B wrote on Feb 17^th, 2022 at 12:36am: I had this idea in my head of a bullet with a rounded nose and the first third of its length being at bore diameter and the remaining two thirds at maybe .407'' to make loading easier, how does all that sound ?. Also I was thinking that if I was going to shell out for a custom mould I might go for a nose pour style while I'm at it. Mike. One or two thou wont make much difference for Hand pushing a bullet. What you descibed would be a waste of johnny cash. Retrieved, genuine Base band bullets show they have obturated perfectly. The BB needs to be over groove diameter Mick. Nose pour if you can get it. Mine aren't.


	IP Logged

rkaires Frequent Elocutionist Offline No Stronger Bond Posts: 1674 Location: Dingmans Ferry, PA Joined: Oct 26^th, 2012	Re: A better bullet idea Reply #5 - Feb 17^th, 2022 at 6:35am	Print Post
	Here's a couple I've used that seat fairly easy in my .40 cal .408 groove Bartlein barrel.

	ASSRA #11031 NRA Life Proud Noodlehead "Peace is that brief, glorious moment in history, when everybody stands around reloading."~ ~ Thomas Jefferson
	IP Logged

Mick B Frequent Elocutionist Offline Posts: 1007 Location: 19 Ian Nicol St watson ACT aus Joined: Apr 11^th, 2013	Re: A better bullet idea Reply #6 - Feb 17^th, 2022 at 6:53pm	Print Post
	That bullet looks like what I'm looking for, would accurate moulds be able to make me one using those dimensions or is that a stock design from another maker that they have in stock ?. Mike.


	IP Logged

oneatatime Frequent Elocutionist Offline Posts: 4482 Location: Rocky Mountains Joined: Oct 30^th, 2011	Re: A better bullet idea Reply #7 - Feb 17^th, 2022 at 7:10pm	Print Post
	That first one is an Accurate mould design. They also have a 413 (41-413T) grain version which might be better for you. You can tweak the dimensions when you order from Tom.


	IP Logged

JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: A better bullet idea Reply #8 - Feb 17^th, 2022 at 7:43pm	Print Post
	If memory serves me right that came from Franknor but you could also design your own. I am a strong believer for one to get exactly what they might need and to not have to settle for anything less than. That is where a chamber casting might actually be helpful to someone who is looking for exactly what they think they actually need.

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
	IP Logged

Dusty Rhodes Full Member Offline Posts: 175 Joined: Apr 28^th, 2016	Re: A better bullet idea Reply #9 - Feb 18^th, 2022 at 12:41am	Print Post
	Mick, where are located, Oz ?? I'm in Adelaide. I could send you some to try. PM me. 👍🇦🇺


	IP Logged

Page Index Toggle

Pages: 1

‹ Previous Topic | Next Topic ›

« Board Index ‹ Board Top

Top

ASSRA Forum » Powered by YaBB 2.6.12!
YaBB Forum Software © 2000-2026. All Rights Reserved.

Valid XHTML

Valid CSS

Powered by Perl

Source Forge

Page completed in 1.3549 seconds.